Converting a byte array to integer

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Hi all,

I need to convert the public static byte [] to integer.
My code as follows.

public static byte[] ORIGINAL_DATA_BYTE=null;
...
...
ADVERTISEMENT_DATA_BYTE[10] ---> This will have a hex value "a6" which is equivalent to 166;
...
Byte numdata = ADVERTISEMENT_DATA_BYTE[10];
String result = new String();
result = String.format(%02X, numdata);
int noofdata = Integer.parseInt(result, 16);
if(noofdata == 166)
{
    but my code not comes in this block
}
....
....

Thanks in advance.

Posted 12-Nov-15 19:33pm

SViki

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phil.o · Answer 1 · 2015-11-12T20:03:00

Taking a byte value, then transforming it to a string to parse it to an integer is insane.

You should realize that a byte value is basically a number, as is an integer value, and there is no need to convert anything, let alone using a string in the middle...

a6 is not equivalent to 166, a6 and 166 are two ways to represent THE SAME VALUE.

So you just should write

C#

int noofdata = (int)numdata;
// OR
int noofdata = (int)ADVERTISEMENT_DATA_BYTE[10];

But I think you should study toroughly what are datatypes (in .NET, and in development in general) and how to use them.

Gyaneswar kumar · Answer 2 · 2015-11-18T21:20:00

Solution 2

in C#:-

BitConverter.ToInt32(arrayByte, 0));

Posted 18-Nov-15 21:20pm

Gyaneswar kumar